6 note(s) found in NED.

Re:NGC 0521
NGC 0521.-This is the largest and brightest spiral in our sample
(M_B_=-20.11). Classified as an SBsc(r) (cz_Hel_=5018 km s^-1^ ), has a
diameter of 65 kpc, twice that of the Milky Way. Its central disk
surface brightness is {mu}_0_(B)=21.7 mag arcsec^-2^, so it is an HSB
galaxy. It has visible spiral arms and a prominent bulge with a scale
length of 720 pc in the R band. The bulge is quite red (B-R=1.64 ), with
almost no difference in color with the overall galaxy (LSB 059 in Galaz
et al. 2006). The near-IR color J-K_s_=0.74 suggests a metallic bulge.
It has a large amount of H I (43.7 x 10^8^ m_sun). However, as discussed
below, this is not a large amount considering the remarkable size of the
galaxy. It is detected by IRAS in 60 and 100 microns, with fluxes of
about 0.65 and 3.16 Jy, respectively. It has a noticeable nuclear bar
which does not however extend too far through the disk.

Re:NGC 0521
NGC 521. This source was not detected in the NVSS. 1.4 GHz, 0.2'
resolution observations of Hummel et al. (1985) give an upper limit of
4 mJy to any radio emission. We have detected a slightly resolved ~0.5
mJy core in the optical nucleus of the galaxy.
The NGC 521 field also shows two other sources to the southeast (~3')
and northeast (~3'), which we have designated as NGC 521SE and NGC 521NE,
respectively. NGC 521SE has been identified with the 17.6 mJy NVSS
source J012437+014112. It is also seen on both the red and blue APM
plates as a stellar object with blue magnitude 21.74. NGC 521NE has
been identified with the 5.7 mJy NVSS source J012443+014535. However,
there is no optical identification on either the red or blue APM plate.

Re:NGC 0521
Group
SBc(rs)I
PH-7547-S
Nov 6/7, 1978
103aO
12 min
NGC 521 is the earliest of the SBc galaxies
in this atlas, close to the edge of the SBbc
morphological section. It may form a physical pair
with NGC 533 (E3; panel 8) at a separation of
14.5'. The redshifts are v_o(521) = 5223 km/s
and v_o(533) = 5664 km/s. At a mean redshift
distance of 109 Mpc (H = 50) the projected
linear separation is 460 kpc if the association is
real. NGC 533 is the brightest member of a rich
group of fainter E and S0 galaxies within a radius
of about 20'.